dc.contributor.author |
Amorin, H |
|
dc.contributor.author |
Portelles, J |
|
dc.contributor.author |
Guerrero, F |
|
dc.contributor.author |
Fundora, A |
|
dc.contributor.author |
Siqueiros-Beltrones, JM |
|
dc.date.accessioned |
2011-01-22T10:27:26Z |
|
dc.date.available |
2011-01-22T10:27:26Z |
|
dc.date.issued |
2000 |
|
dc.identifier.issn |
0015-0193 |
|
dc.identifier.uri |
http://hdl.handle.net/11154/1976 |
|
dc.description.abstract |
The effect of the titanium cation as a doping element in the diffuse phase transition of the (Sr0.255La0.03Ba0.7)(Nb2-yTiy)O6-y/2 ferroelectric ceramic system is studied. Far from the transition temperature, a Curie-Weiss behavior of the dielectric permittivity with temperature is observed with strongly broadened curves in all cases, however, a non Curie-Weiss behavior above the transition temperature is observed. The diffuseness coefficient (delta) was calculated using Isupov's relation and by a more realistic model assuming a Gaussian distribution for the transition temperatures, in a temperature interval around the maximum permittivity temperature. The conditions under which each expression can be used are discussed. |
en_US |
dc.language.iso |
en |
en_US |
dc.title |
Diffuse phase transition in the (La0.03Sr0.255Ba0.7)(Nb2-yTiy)O-6.y/2 ferroelectric ceramic system |
en_US |
dc.type |
Article |
en_US |
dc.identifier.idprometeo |
2320 |
|
dc.source.novolpages |
248(40634):97-106 |
|
dc.subject.wos |
Materials Science, Multidisciplinary |
|
dc.subject.wos |
Physics, Condensed Matter |
|
dc.description.index |
WoS: SCI, SSCI o AHCI |
|
dc.subject.keywords |
ferroelectric ceramics |
|
dc.subject.keywords |
diffuse phase transition |
|
dc.subject.keywords |
modified Sr1-xBaxNb2O6 system |
|
dc.relation.journal |
Ferroelectrics |
|